Notom vs Obsidian
Obsidian is a graph workshop. Notom is what you reach for when you'd rather the graph build itself while you live your day.
Obsidian's defining move is the [[wiki-link]]. Every connection between notes is something you typed. The result, after a few months of disciplined practice, is a beautiful personal graph you can navigate visually. The cost is that every link is work, and the discipline is the actual product. Most people fall off the discipline.
Notom takes a much narrower position: the only link that consistently matters is the one between a note and the to-dos it produced. So that's the one Notom creates automatically. You write the note, you save the note, the actions appear linked back. No wiki-link syntax to learn, no graph to maintain. The connection is there because it earned its place, not because you remembered to type the brackets.
A lot of Obsidian's enjoyment is in tuning Obsidian. Picking the right plugins. Configuring Templater. Wiring up Dataview queries. The community is wonderful and the customisability is genuinely impressive. It is also a colossal time sink, and the time you spend in your second-brain meta-system is time you're not using your actual brain.
Notom is opinionated about what to do. Capture notes, pull out actions, surface what's due. There's almost nothing to configure. You don't pick plugins because there are none. You don't tune templates because the structure shows up on its own. You forget the app exists, which is how every useful tool should feel.
Obsidian has tasks (via the Tasks plugin) and you can build a Dataview query that surfaces tasks across your vault. It's powerful. It's also a lot of setup before you can capture a single thought.
In Notom, type "call the bank Monday about the wire, pick up her prescription before Friday", hit save, and two actions appear in your Actions tab with their due dates resolved. No - [ ] checkbox syntax. No Dataview query to build. The default is action extraction, not a feature you have to opt into.
Obsidian's mobile app is real, but mobile capture is friction-heavy. The vault, the sync, the editor mode. Most Obsidian users do their captures at a desk.
Notom is mobile-first. Open the PWA, type, save. One second. The capture you'd lose between the cafe and the car gets caught, with its actions extracted. The graph you would never have built is still there, because Notom built the small useful slice of it for you automatically.
| Notom | Obsidian | |
|---|---|---|
| Linking notes | Automatic. Note ↔ action | Manual. You type [[links]] |
| To-dos from notes | Pulled out automatically | Tasks plugin + Dataview setup |
| Mobile capture | PWA share-sheet, one second | App exists, friction higher |
| Configuration burden | Nearly zero | Plugins, templates, themes |
| Markdown source files | No. Hosted database | Yes. Plain files on disk |
| Local-first | No | Yes |
| Graph view | Not the use case | Iconic |
| AI training on your data | Never | Depends on plugins you install |
FAQ
No. Obsidian is a knowledge-graph workshop for people who get joy from building one. Notom is for people who'd rather the graph build itself in the background while they get on with the day. Different jobs.
Notom's editor handles rich text, links and lists naturally. It's not a Markdown-source-of-truth tool. The canonical format is structured note content. If your workflow depends on your notes being plain Markdown files on disk you can grep and version-control, stay with Obsidian.
It has automatic action-to-note linking. Every action shows the note it came from, and every note shows the actions it spawned. It does not have the wider [[wiki-link]] graph that Obsidian centres on. The trade is intentional: less time wiring the graph, more time using the notes.
In Notom's hosted database, on EU-region infrastructure. Not local-first like Obsidian. If you require your notes to live as plain files on your own disk and sync via your own iCloud / Dropbox / git, Obsidian fits that constraint and Notom doesn't.
No. AI inference runs only when you save a note, only against our AI provider. Your notes are not sold, mined, or used to train models. Each AI-extracted action stays linked to the note it came from so you can always see why it appeared.
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